Estudo de equações matemáticas para cálculo de vazão em drenos de bambu.

Abstract

The necessity of technology for small farmers associated to the lack of information on this area, justify this work, whose objective is to study a mathematical model that best fits the calculation of flow rate in bamboo drains. The experiment, conducted at laboratory, was done in a hydraulic bench for water flux studies, where a bunch of bamboo sticks of square section (20 x 20cm) was placed. Varying the slope from 1 to 10 m/1000m, the flow rate was obtained. By regression analysis (Excel 5.0), an equation was determined [Q(m3/s) = -3E-06S2(0/00) + 0.0002S(0/00) + 0.006 ; r2=0.999 ]. This equation constitutes the beginning of studies for bamboo drains, more efficient, for small farmers, due to their low cost.